Re: Originate CoA Request After Receiving Access-Accept

27 Apr 2013

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Okis Chuang wrote:
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From the originate-coa documentation, it seems I can?t originate
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coa-request at the section of pre-proxy or post-proxy.
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It?s documented, pretty clear.
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It's nice to hear that the documentation helps. :)
I thought docs are very helpful at most of time. :p
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I?m not sure whether it is the cause of my following questions.
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It is.
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But what if I need two steps below finished continually both in the
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same
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move:
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1.      **proxy** auth request to other AAA dispatcher(also FreeRADIUS)
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to decide where to authenticate.
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That's easy.
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2.      Getting Access-Accept in post-auth, then originate coa request
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at once in order to change redirect profile to forward profile for
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subscriber.
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That's hard.  At least with "originate-coa".
So.. the core concept of *originate-coa* is just "proxy-the-coa"
instead of initiating a coa request?
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The short answer is that you can run "radclient" as an external
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program from the post-proxy section.  It's ugly, but it will work.
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Hmm..that is indeed an alternative, but like you said, it's kind of
not a neat way to achieve my goal.

        And I'm worrying that might have some performance issue if supposed
I will have high traffic.
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But I got the warning that **cannot proxy and originate CoA packets
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at the same time**.
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Yes.  We're looking into fixing that for 3.0.
No offense, I'm curious that why can't view these two request:
"Proxy-Auth Request" and "CoA Request" as two independent request?

        Or this is about some kind of concern on designation? I thought that
was intuitive until I saw the result and got your kind but hopeless response
: (
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Actually I move the coa origination to my AAA dispatcher, it also
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can?t works and occurs the same warning.(It makes sense because both
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are doing coa request after proxying auth request I guess.
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Originating a CoA packet is really proxying it.  And the server
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can't proxy to two different destinations.
Ok. I got your point.
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So here are my questions:
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1.      Does this flow works possibly in my scenario? I mean can I
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originate coa at once after getting Access-Accept?
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Not today.
Does this would be a difficult demand?
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2.      What if I set a **virtual coa server** for receiving coa request
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from itself, then send to gateway at the section of
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That won't change anything.
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It may be easy to originate CoA packets *after* proxying.  Just so
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long as it doesn't do both at the same time.
What do you mean *after*? The next any-kind-of request?

        But I really need they do it in the same sequence. It a bit upset
me.
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I'll see if I have time to look into it.
Thanks Alan! Thanks your contribution and devotion to FreeRADIUS. 

        It's really impressive. Not a compliment at all. lol
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Alan DeKok.
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Okis Chuang

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